hardtack
noun [ U ] uk/ˈhɑːd.tæk/ us/ˈhɑːrd.tæk/
压缩饼干
a kind of biscuit made from flour and water and previously eaten especially by sailors and soldiers
Hardtack was ideal for long sea voyages as it would remain edible for a very long time.
Hardtack is so dry and hard that you really need to dip it in something or soften it in a pan with some fat. 压缩饼干又干又硬，需要蘸着吃，或者在锅里放油把它弄软。
- More examples
- The cook added some salt into the hardtack to make it a bit more palatable.
- It's not known when people first started making hardtack, but it was certainly many centuries ago.